What's cool about Quad-copters?

For starters, it has 4 propellers.

Quad-copters come in different shape and size. I recently bought one, a nano quad-copter.

It's amazing how just one silicon board is engraved with algorithms  that manipulates the flow of electrons to control the tiny motor rpm which in turn produce lift.

What amaze me more is that this tiny quad copter is designed and manufactures in China, at a very cheap rate.

People has ignored that fact that things are hard to fly and now perceives world as instant stuffs that just works.

-Chan